The Sources folder
When people work on "a project" - meaning a program made to accomplish some task - there will often be more than just Java code involved.
To deal with this its common to make a folder to put Java code into. I prefer the name
src
for this.
$ mkdir src
And inside this src
folder we will put the code.1
So you should have this
project/ <- Open this in your text editor
src/ <- Code will go here
1
There are different ways to layout a project. All are valid. You can call the src
folder STUFF
- it ultimately doesn't matter. This is just another one of those social conventions.